/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #0891B2;
  --primary-dark: #0E7490;
  --primary-light: #22D3EE;
  --dark: #0F172A;
  --dark-secondary: #1E293B;
  --text: #334155;
  --text-light: #64748B;
  --text-lighter: #94A3B8;
  --bg: #FFFFFF;
  --bg-alt: #F8FAFC;
  --border: #E2E8F0;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1), 0 6px 10px rgba(0,0,0,0.08);
  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--primary-dark);
}

img {
  max-width: 100%;
  display: block;
}

/* ===== Layout ===== */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-lighter);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover {
  color: #fff;
}

.nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600 !important;
  transition: background var(--transition) !important;
}
.nav-cta:hover {
  background: var(--primary-dark);
}

/* Mobile menu */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(160deg, var(--dark) 0%, var(--dark-secondary) 50%, #0C4A5E 100%);
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(8,145,178,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: 60px;
}

.hero-content {
  flex: 1;
  max-width: 540px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(8,145,178,0.15);
  border: 1px solid rgba(8,145,178,0.3);
  color: var(--primary-light);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-lighter);
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  color: var(--dark);
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-md);
}
.store-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--dark);
}
.store-btn .store-icon {
  font-size: 1.6rem;
  line-height: 1;
}
.store-btn .store-label {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.store-btn .store-label small {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.store-btn .store-label strong {
  font-size: 1rem;
}

/* Phone mockup */
.hero-visual {
  flex: 0 0 300px;
  display: flex;
  justify-content: center;
}

.phone-mockup {
  width: 260px;
  height: 520px;
  background: linear-gradient(160deg, #1a1a2e 0%, #16213e 100%);
  border-radius: 40px;
  border: 4px solid #2a2a4a;
  position: relative;
  box-shadow: 0 25px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.05);
  overflow: hidden;
}

.phone-mockup::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 28px;
  background: #000;
  border-radius: 0 0 18px 18px;
  z-index: 2;
}

.phone-screen {
  position: absolute;
  inset: 12px;
  background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary) 30%, #e0f7fa 60%, #fff 100%);
  border-radius: 30px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 50px;
}

.phone-screen-header {
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.phone-screen-icon {
  width: 80px;
  height: 80px;
  background: rgba(255,255,255,0.2);
  border-radius: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  backdrop-filter: blur(8px);
}

.phone-screen-cards {
  width: 85%;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.phone-card {
  background: rgba(255,255,255,0.9);
  border-radius: 12px;
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.phone-card-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.phone-card-text {
  flex: 1;
}

.phone-card-text strong {
  display: block;
  font-size: 0.7rem;
  color: var(--dark);
}

.phone-card-line {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin-top: 4px;
  width: 70%;
}

/* ===== Features ===== */
.features {
  padding: 100px 0;
  background: var(--bg-alt);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(8,145,178,0.1), rgba(34,211,238,0.1));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.65;
}

/* ===== How It Works ===== */
.how-it-works {
  padding: 100px 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 20px;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0 auto 20px;
}

.step h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.step p {
  font-size: 0.92rem;
  color: var(--text-light);
  max-width: 280px;
  margin: 0 auto;
}

/* ===== CTA ===== */
.cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-secondary) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(8,145,178,0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.cta h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.cta p {
  font-size: 1.1rem;
  color: var(--text-lighter);
  margin-bottom: 36px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta .hero-buttons {
  justify-content: center;
}

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  padding: 60px 0 30px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--text-lighter);
  font-size: 0.9rem;
  margin-top: 12px;
  max-width: 300px;
  line-height: 1.6;
}

.footer h4 {
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-lighter);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom p {
  color: var(--text-lighter);
  font-size: 0.82rem;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: var(--text-lighter);
  font-size: 0.82rem;
}
.footer-bottom-links a:hover {
  color: #fff;
}

/* ===== Page Header (inner pages) ===== */
.page-header {
  background: linear-gradient(160deg, var(--dark) 0%, var(--dark-secondary) 100%);
  padding: 120px 0 60px;
  text-align: center;
}

.page-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--text-lighter);
  font-size: 1rem;
}

/* ===== Legal Content ===== */
.legal-content {
  padding: 60px 0 100px;
}

.legal-content .container {
  max-width: 780px;
}

.legal-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-top: 40px;
  margin-bottom: 16px;
}

.legal-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--dark);
  margin-top: 28px;
  margin-bottom: 12px;
}

.legal-content p {
  margin-bottom: 16px;
  line-height: 1.75;
  color: var(--text);
}

.legal-content ul {
  margin-bottom: 16px;
  padding-left: 28px;
}

.legal-content li {
  margin-bottom: 8px;
  line-height: 1.7;
  color: var(--text);
}

/* ===== Support Page ===== */
.support-section {
  padding: 60px 0 100px;
}

.support-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: #fff;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition);
  font-family: inherit;
}
.faq-question:hover {
  background: var(--bg-alt);
}

.faq-question .chevron {
  font-size: 0.8rem;
  color: var(--text-light);
  transition: transform var(--transition);
}

.faq-item.open .faq-question .chevron {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-light);
  line-height: 1.7;
  font-size: 0.95rem;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.contact-card {
  background: var(--bg-alt);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--border);
  position: sticky;
  top: 88px;
}

.contact-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
}

.contact-card p {
  color: var(--text-light);
  font-size: 0.92rem;
  margin-bottom: 24px;
  line-height: 1.65;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--border);
}

.contact-method-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, rgba(8,145,178,0.1), rgba(34,211,238,0.1));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-method-text {
  font-size: 0.9rem;
}

.contact-method-text strong {
  display: block;
  color: var(--dark);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.contact-method-text a,
.contact-method-text span {
  color: var(--text-light);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  width: 100%;
  margin-top: 12px;
  text-decoration: none;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  color: #fff;
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero .container {
    flex-direction: column;
    text-align: center;
  }
  .hero-content {
    max-width: 100%;
  }
  .hero-buttons {
    justify-content: center;
  }
  .hero-visual {
    flex: none;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .support-grid {
    grid-template-columns: 1fr;
  }
  .contact-card {
    position: static;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--dark);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    border-top: 1px solid rgba(255,255,255,0.06);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-toggle {
    display: block;
  }
  .hero {
    padding: 120px 0 60px;
  }
  .hero h1 {
    font-size: 2.2rem;
  }
  .hero p {
    font-size: 1rem;
  }
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  .store-btn {
    width: 100%;
    max-width: 260px;
    justify-content: center;
  }
  .phone-mockup {
    width: 220px;
    height: 440px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .section-header h2,
  .cta h2 {
    font-size: 1.7rem;
  }
  .page-header h1 {
    font-size: 1.8rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}